Sorts recipes/items/fluids and modifies these icons to make them easier to see and find.
Providing the player with new tools or adjusting the game interface, without fundamentally changing gameplay.
I work around that by patching the try_set_item_icons{_if} functions by bailing out if the item does not exist, but there may be a better way.
Thank you for telling. I'll fix it in the next update (v.1.1.6).
